TweakGearProPC Toolkit
Home / Calculators / Monitor PPI

Monitor PPI Calculator

Turn resolution + diagonal size into pixel density — the number that decides how sharp your screen looks.

Estimates only. These calculators use typical component specifications and rough rules of thumb. They are for planning and education, not purchase advice. Verify every number against your parts’ official datasheets before buying or building.

Monitor resolution

inches, e.g. 27 for a 27″ monitor

Pixel density

108.8 PPI
Pixel pitch0.23 mm
CategoryLow density (large pixels, may look soft)
PPI = √(w² + h²) ÷ diagonal. Higher PPI = sharper text; at the same resolution a larger screen has lower density. For 27″+ gaming, 1440p (~109 PPI) to 4K (~163 PPI) are common.
Why PPI matters

Scenario: you are deciding between a 27″ 1440p and a 32″ 1440p monitor, or wondering whether 1080p is still sharp on a 24″ screen. PPI is the comparison metric.

Example: 1080p on 24″ ≈ 92 PPI (standard); 1440p on 27″ ≈ 109 PPI (the gaming sweet spot); 4K on 27″ ≈ 163 PPI; 4K on 32″ ≈ 140 PPI. Above ~200 PPI (retina-class phones/tablets) individual pixels are invisible at typical viewing distance.

Boundaries: PPI is geometry — resolution and size alone — not color accuracy or panel quality. At the same resolution, a smaller screen is denser but smaller; scaling (e.g., 125–150% in Windows) trades sharpness for usable UI size. Use the monitor size calculator to get the physical footprint from the diagonal.

Related tools from our network

A focused set of free calculators and guides across related topics — no account required.

Moving & home

Money & tax